If you're having issues downloading and playing cRPG due to launcher problems or other issues, here is a (verified) working cRPG folder download, courtesy of James of Acre and Macho for the renewed link

It's a 721mb cRPG folder, vanilla, no changes done.All you have to do is rename your old cRPG folder to something like "cRPG OLD", unpack it, then copy the downloaded folder into your \mountblade warband\Modules\ folder.Then simply launch it using the launcher and it should work correctly.

If you continue encountering errors, try starting the game in offline mode by ticking this box.

EDIT: Highlighted Macho's upload and put it in the OP, thank you very much for this!

After I haven't played in a long time I just noticed the old launcher I used was not compatible with the new updates, probably because server changed and so the updater itself could not update, "Error 404 exception.."